A look at what factors will impact this winter’s weather

With the first heavy profit The calendar of the season in the National Air Map is rapidly looking at the meteorological winter, which is a season that may be complex to predict.

In addition to potentially fluctuation El niño – Daily oscillationAn important marine heat wave in the North Pacific and Climate Change can play a role as well as the usual interruptions of the polar vortex.

Noaa called for temperatures above average along the southern layer of the country and the east coast of the country.

While most of the hearts of the country are expected to experience normal conditions, it may tend to the northwest pacific average.

On the rainfall front, the Northern Rockies and Ohio Valley stand out as the highest chance regions above average, while most of the country may be more dry than normal.

On his face, the appearance looks quite simple, but a few factors do something else.

The existing observations in the East and Middle Pacific show the water temperatures near the average, ie what is known as La Nada – or neutral ENSO conditions are currently under control.

La Nadas typically causes a more regional flow throughout the country by bringing less jet flow deduction. This pattern usually inflates the colder on the North USA and Canada, and the warmer conditions dominate the southern states.

Noaa has been waiting for the current La Nada to go to a short time La niñaThis was probably going to start the country more often the arctic air explosions.

However, not all la niñas brings colder conditions. Since 1950, the roughly half of the weak La Niña events has resulted in winter temperatures below the average, while the other half had extended hot spells.

In recent years, La Niña events are more warmed by the lack of snowfall – a possible sign of the changing climate of the world.

According to NOAA’s historical data, six of the 10 hottest people winters It took place in the last 24 years.

Most of the North Pacific currently have 5-10 degrees Fahrenheit working sea surface temperatures, which sets records for both density and coverage areas.

If “Hot Blob” continues until winter, there may be significant results in North America.

In the winter of 2013-14, which includes a significant warm stain on the Pacific, snowfall above the average sinks most of the Middle and Eastern USA and is based on the harsh conditions of the Middle West.

It was the coldest since the end of the 1970s that winter and seriously overturned transportation to the economy, which cost billions of dollars.

Estimators believe that Blob allows a strong back to continue West coastForcing the jet flow to the south through the United States of Central and Eastern United States.

The first Noaa winter views do not propose a similar installation this year, which may indicate that 2013-14 has an anomaly rather than a recurrent pattern connected to each pacific heat wave.

Meteorological Winter officially starts on December 1 and continues until the end of February.

Original Article Source: A look at which factors this winter will affect the air